CN114905716A - Device and method for prefabricating intelligent pipeline trunking - Google Patents

Device and method for prefabricating intelligent pipeline trunking Download PDF

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Publication number
CN114905716A
CN114905716A CN202210525401.3A CN202210525401A CN114905716A CN 114905716 A CN114905716 A CN 114905716A CN 202210525401 A CN202210525401 A CN 202210525401A CN 114905716 A CN114905716 A CN 114905716A
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die
extrusion
strip
extrusion die
base material
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CN202210525401.3A
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CN114905716B (en
Inventor
霍福磊
褚展鹏
刘秦元
褚展宙
陈江慧
刘跃明
李鹏
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Linhai Weixing New Building Materials Co Ltd
Zhejiang Weixing New Building Materials Co Ltd
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Linhai Weixing New Building Materials Co Ltd
Zhejiang Weixing New Building Materials Co Ltd
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Priority to CN202210525401.3A priority Critical patent/CN114905716B/en
Priority to PCT/CN2022/100132 priority patent/WO2023216370A1/en
Publication of CN114905716A publication Critical patent/CN114905716A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • B29C48/023—Extruding materials comprising incompatible ingredients
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
    • C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
    • C08L27/06—Homopolymers or copolymers of vinyl chloride
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2203/00—Applications
    • C08L2203/18—Applications used for pipes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Electric Cable Installation (AREA)
  • Metal Extraction Processes (AREA)

Abstract

The invention discloses a device and a method for prefabricating an intelligent pipeline trunking, wherein the device comprises a core pipe extrusion die, the core pipe extrusion die is connected with an opening core die, the opening core die is connected with a co-extrusion strip extrusion die, the co-extrusion strip extrusion die is connected with an outlet die, the opening core die, the co-extrusion strip extrusion die and the outlet die share one core die, the inner diameters of the outer dies of the opening core die, the co-extrusion strip extrusion die and the outlet die are equal, a convex structure with a round angle extends from the inner wall of the outer die of the co-extrusion strip extrusion die to the inner wall of a flow channel of the co-extrusion strip, the core pipe extrusion die extrudes a non-polar base material, and when the non-polar base material is extruded to the position of the outlet die, the co-extrusion strip extrusion die begins to extrude a polar base material and extrudes the polar base material from the outlet die; shaping after extrusion, cooling, and stripping the co-extruded strip; after stripping, a stable and uniform prefabricated notch is formed, the intelligent cable is directly embedded, and the stripped co-extruded strip is recycled through a granulator and is reused. The invention can effectively avoid the damage to the pipe, can realize the notches with different section forms and has low cost.

Description

Device and method for prefabricating intelligent pipeline trunking
Technical Field
The invention belongs to the technical field of intelligent pipeline production, and particularly relates to a device and a method for prefabricating an intelligent pipeline trunking.
Background
In the field of intelligent pipelines, the realization of pipeline intelligence mainly depends on the integration and compounding of functional cables or optical cables. The existing composite technology mainly adopts the following three ways: 1. the combination of the cable and the pipeline is realized through a specific clamp, and 2, the pipe is grooved by physical modes such as a cutter and the like and then combined with the pipe. 3. Directly compound the cable inside the pipe in the production process. The above-mentioned technical forms have obvious drawbacks: the first form can not guarantee the firm connection of functional cable and tubular product, arranges in the tubular product outer end, and tubular product itself can not provide the protection for these cables, and the easy failure destroys, and the test data accuracy is not high. The cable is fixed in tubular product through grooved mode to the second form, and the cutting of cutter requires highly to the control of technology, produces the damage to tubular product easily, and the mode of cutting can produce deckle edge, has still influenced the outward appearance of tubular product, has increased production flow again after the technology of deckle edge in addition. The third type of composite intelligent pipeline has high requirements on the connecting joint of the composite pipe because the cable and the pipe are highly composite, and the production cost is also higher.
Disclosure of Invention
In view of the above problems, the present invention provides an apparatus and method for prefabricating an intelligent pipeline trunking.
In order to achieve the purpose, the following technical scheme is provided:
the utility model provides a prefabricated intelligent pipeline wire casing's device, includes core pipe extrusion die, core pipe extrusion die is connected with the mouth mandrel, mouth mandrel is connected with crowded strip extrusion die altogether, crowded strip extrusion die is connected with the export mould altogether, mouth mandrel, crowded strip extrusion die and export mould share a mandrel altogether, the internal diameter of the outer mould of mouth mandrel, crowded strip extrusion die altogether and export mould equals, the outer mould inner wall of crowded strip extrusion die extends out the protruding structure of taking the fillet to the runner in, reduces the flow resistance to flowing matrix material and forms the runner cavity.
Furthermore, the lower end of one side of the protruding structure facing the extrusion direction extends towards the extrusion direction, a co-extrusion strip flow channel is formed between the protruding structure and the inner wall of the outer die of the co-extrusion strip extrusion die, and the cross section of the co-extrusion strip flow channel is rectangular or trapezoidal.
A method for prefabricating an intelligent pipeline trunking by adopting the device comprises the following steps:
1) the core tube extrusion die extrudes a nonpolar base material, when the nonpolar base material is extruded to the position of the outlet die, the co-extrusion strip extrusion die begins to extrude the polar base material and extrudes the polar base material from the outlet die, due to the arrangement of the convex structure, a line groove structure is formed on the surface of the core tube, the polar base material is extruded into the line groove, and the polar and nonpolar material is not bonded, so that the co-extrusion strip can be rapidly stripped in the subsequent process;
2) after extrusion, the pipe is shaped by a vacuum sizing device, so that the co-extruded strip and the core pipe can still have no gap under the condition of non-adhesion, the interface of the co-extruded strip and the core pipe is a uniform straight line, and after cooling by a cooling box, the co-extruded strip is stripped;
3) the co-extruded strip forms a stable and uniform prefabricated notch after being stripped, then is directly embedded into an intelligent cable, and the stripped co-extruded strip is recovered through a granulator and then is placed into a co-extruded strip extrusion die for reuse;
the non-polar substrate and the polar substrate have different coefficients of thermal expansion.
Further, the nonpolar base material is PE, the polar base material is a modified PVC material, and the modified PVC material comprises, by weight, 100 parts of PVC resin, 5-10 parts of a lubricant, 1-3 parts of an antioxidant, 1-3 parts of a dispersant, 2-3 parts of a coupling agent, and 5-7 parts of a toughening agent.
Further, the lubricant is carbon graphite powder, the antioxidant is a phenolic antioxidant 1010 or 1076, the dispersant is any one or a mixture of two of zinc stearate and barium stearate, the coupling agent is any one or a mixture of any two of aluminate, tin coupling agent and silane coupling agent, and the toughening agent is any one of POE, CPE and ABS.
Further, the core tube extrusion is performed by a single-screw extruder, the temperature of a cylinder zone is 170-180 ℃, the temperature of a die head zone is 180-190 ℃, the temperature of a coextrusion strip is performed by a single-screw extruder, the temperature of the cylinder zone is 140-150 ℃, and the temperature of the die head zone is 150-160 ℃.
Further, the vacuum degree of vacuum sizing is 0.1MPa, and the cooling box is cooled to 25-35 ℃.
The invention has the beneficial effects that:
1) the prefabricated wire groove is formed in a co-extrusion mode of the co-extrusion strips, so that the damage of cutting tools to the pipe can be effectively avoided, and burrs and waste materials cannot be generated in the production process;
2) through the design of the extrusion die, notches with different section forms can be realized, and prefabricated wire grooves with a plurality of notches can be realized;
3) through the design of a unique polar co-extrusion strip formula, the interlayer lubrication and non-adhesion between the co-extrusion strip and the notch are ensured while the pipe is formed, and the co-extrusion strip can be easily torn off to form the notch and can be recycled.
Drawings
FIG. 1 is a cross-sectional view of the apparatus of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is an enlarged detail view at A;
FIG. 4 is a production flow chart of the present invention.
In the figure: 1. core tube extrusion die; 2. a mouth core mold; 3. co-extruding a strip extrusion die; 4. an outlet die; 31. co-extruding a strip flow channel; 311. and (4) a convex structure.
Detailed Description
The invention will be further described with reference to the drawings and examples in the following description, but the scope of the invention is not limited thereto.
As shown in fig. 1 to 3, a device for prefabricating an intelligent pipeline trunking includes a core pipe extrusion die 1, the core pipe extrusion die 1 is connected with a mouth core die 2, the mouth core die 2 is connected with a coextrusion strip extrusion die 3, the coextrusion strip extrusion die 3 is connected with an outlet die 4, the mouth core die 2, the coextrusion strip extrusion die 3 and the outlet die 4 share one core die, the inner diameters of the outer dies of the mouth core die 2, the coextrusion strip extrusion die 3 and the outlet die 4 are equal, a convex structure 311 with a rounded corner extends into a flow channel from the inner wall of the outer die of the coextrusion strip extrusion die 3, the lower end of one side of the convex structure 311 facing the extrusion direction extends towards the extrusion direction and forms a coextrusion strip flow channel 31 with the inner wall of the outer die of the coextrusion strip extrusion die 3, and the cross section of the coextrusion strip flow channel 31 is rectangular or trapezoidal.
As shown in fig. 4, the method for prefabricating the intelligent pipeline trunking by using the device comprises the following steps: extruding the nonpolar base material by the core tube extrusion die 1, and when the nonpolar base material is extruded to the position of the outlet die 4, starting extruding the polar base material by the co-extrusion strip extrusion die 3 and extruding the polar base material from the outlet die 4; after extrusion, the pipe is shaped by a vacuum sizing device, and after being cooled by a cooling box, the co-extruded strips are peeled off; the crowded strip altogether just forms stable even prefabricated notch after peeling off, and intelligent cable of later direct embedding is crowded strip altogether after peeling off passes through the granulator and retrieves, puts into crowded strip extrusion die 3 used repeatedly altogether again.
Example 1
The core tube extrusion is carried out by adopting a single screw extruder, the cylinder temperature is 180 ℃, the die head temperature is 190 ℃, the co-extrusion strip extrusion is carried out by adopting the single screw extruder, the cylinder temperature is 150 ℃, the die head temperature is 160 ℃, the polar base material extruded by the core tube is a PE base material, the expansion coefficient is 0.128mm/m ℃, the base material extruded by the co-extrusion strip is a modified PVC material, the modified PVC material comprises 100 parts of PVC resin, 8 parts of carbon graphite powder, 10102 parts of phenol antioxidant, 1 part of hard zinc, 2 parts of aluminate, 5 parts of POE and 0.088mm/m in parts by weight, the modified PVC material is extruded by a device for prefabricating an intelligent pipeline slot to form a pipe, the pipe is subjected to vacuum sizing, the vacuum degree is 0.1MPa, the pipe is cooled to 30 ℃, the co-extrusion strip is peeled to form a rectangular slot with the width of 4mm and the depth of 2mm, and then the intelligent cable is directly embedded.
Example 2
The core tube extrusion is carried out by adopting a single screw extruder, the cylinder temperature is 180 ℃, the die head temperature is 190 ℃, the co-extrusion strip extrusion is carried out by adopting the single screw extruder, the cylinder temperature is 150 ℃, the die head temperature is 160 ℃, the polar base material extruded by the core tube is a PE base material, the expansion coefficient is 0.128mm/m, the base material extruded by the co-extrusion strip is a modified PVC material, the modified PVC material comprises 100 parts of PVC resin, 8 parts of carbon graphite powder, 10761 parts of phenolic antioxidant, 2 parts of barium stearate, 2 parts of silane coupling agent, 7 parts of CPE, and the expansion coefficient is 0.098mm/m in parts by weight, the modified PVC material is extruded by a device for prefabricating an intelligent pipeline slot to form a pipe, the pipe is subjected to vacuum sizing, the vacuum degree is 0.1MPa, the cooling is carried out to 30 ℃, the co-extrusion strip is peeled to form a rectangular slot with the width of 5mm and the depth of 2mm, and then the intelligent cable is directly embedded.
Example 3
The core pipe extrusion adopts a single screw extruder for extrusion, the machine barrel temperature is 180 ℃, the die head temperature is 190 ℃, the co-extrusion strip extrusion adopts the single screw extruder for extrusion, the machine barrel temperature is 150 ℃, the die head temperature is 160 ℃, the polar base material extruded by the core pipe is a PE base material, the expansion coefficient is 0.128mm/m, the base material extruded by the co-extrusion strip is a modified PVC material, the modified PVC material comprises 100 parts by weight of PVC resin, 8 parts by weight of carbon graphite powder, 10102 parts by weight of phenolic antioxidant, 2 parts by weight of barium stearate, 3 parts by weight of tin coupling agent, 6 parts by weight of ABS, and the expansion coefficient is 0.1mm/m, the modified PVC material is extruded by a device for prefabricating an intelligent pipeline slot to form a pipe, the pipe is subjected to vacuum sizing, the vacuum degree is 0.1MPa, the cooled to 30 ℃, the co-extrusion strip is peeled to form a rectangular slot with the width of 4mm and the depth of 3mm, and then the intelligent cable is directly embedded.
The manufacturer of the phenolic antioxidant 1010 used in the examples was Shanghai Kahn's chemical industry, and the manufacturer of the phenolic antioxidant 1076 was Basff (China) Co.

Claims (7)

1. The utility model provides a device of prefabricated intelligent pipeline wire casing, including core pipe extrusion die (1), its characterized in that core pipe extrusion die (1) is connected with mouth mandrel (2), mouth mandrel (2) are connected with crowded strip extrusion die (3) altogether, crowded strip extrusion die (3) altogether is connected with outlet die (4), mouth mandrel (2), crowded strip extrusion die (3) altogether and outlet die (4) share a mandrel, the internal diameter of mouth mandrel (2), crowded strip extrusion die (3) altogether and the outer mould of outlet die (4) equals, the outer mould inner wall of crowded strip extrusion die (3) extends out protruding structure (311) of taking the fillet to the runner in.
2. A device for prefabricating intelligent pipeline trunking according to claim 1, wherein the lower end of one side of the convex structure (311) facing the extrusion direction extends towards the extrusion direction, a co-extrusion strip flow channel (31) is formed between the lower end and the inner wall of the outer die of the co-extrusion strip extrusion die (3), and the cross section of the co-extrusion strip flow channel (31) is rectangular or trapezoidal.
3. A method of prefabricating a smart pipe trunking using the apparatus of claim 2, comprising the steps of:
1) extruding a nonpolar base material by the core tube extrusion die (1), and when the nonpolar base material is extruded to the position of the outlet die (4), starting extruding the polar base material by the co-extrusion strip extrusion die (3) and extruding the polar base material from the outlet die (4);
2) after extrusion, the pipe is shaped by a vacuum sizing device, and after being cooled by a cooling box, the co-extruded strips are peeled off;
3) the co-extruded strip forms a stable and uniform prefabricated notch after being stripped, then is directly embedded into an intelligent cable, and the stripped co-extruded strip is recovered through a granulator and then is placed into a co-extruded strip extrusion die (3) for repeated use;
the non-polar substrate and the polar substrate have different coefficients of thermal expansion.
4. The method according to claim 3, wherein the nonpolar substrate is PE, the polar substrate is a modified PVC material, and the modified PVC material comprises, by weight, 100 parts of PVC resin, 5-10 parts of a lubricant, 1-3 parts of an antioxidant, 1-3 parts of a dispersant, 2-3 parts of a coupling agent, and 5-7 parts of a toughening agent.
5. The method according to claim 4, wherein the lubricant is carbon graphite powder, the antioxidant is phenolic antioxidant 1010 or 1076, the dispersant is one or a mixture of two of zinc stearate and barium stearate, the coupling agent is one or a mixture of two of aluminate, tin coupling agent and silane coupling agent, and the toughening agent is one of POE, CPE and ABS.
6. The method as claimed in claim 5, wherein the core tube extrusion is a single screw extruder extrusion, the temperature of the barrel region is 170-.
7. The method of claim 3, wherein the vacuum sizing is performed at a vacuum of 0.1MPa and the cooling box is cooled to a temperature of 25-35 ℃.
CN202210525401.3A 2022-05-13 2022-05-13 Device and method for prefabricating intelligent pipeline trunking Active CN114905716B (en)

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CN202210525401.3A CN114905716B (en) 2022-05-13 2022-05-13 Device and method for prefabricating intelligent pipeline trunking
PCT/CN2022/100132 WO2023216370A1 (en) 2022-05-13 2022-06-21 Device and method for prefabricating cable groove of smart pipe

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CN212684661U (en) * 2020-06-18 2021-03-12 航天瑞奇电缆有限公司 High resistance of ears draws cable extrusion tooling
CN214082746U (en) * 2020-11-17 2021-08-31 临海伟星新型建材有限公司 Extrusion die structure of polyolefin pipeline

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